Home / 808,538.80-1,212,808.20-718,337.20

Finding the Fourth Proportional to 808,538.80, 1,212,808.20 and 718,337.20

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Solution

The fourth proportional to 808,538.80, 1,212,808.20 and 718,337.20 is: 1,077,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,538.80 : 1,212,808.20 = 718,337.20 : x
  2. Step 2: Convert to fraction form
    808,538.80/1,212,808.20 = 718,337.20/x
  3. Step 3: Cross multiply
    808,538.80x = 1,212,808.20 × 718,337.20
  4. Step 4: Simplify right side
    808,538.80x = 871,205,246,525.04
  5. Step 5: Solve for x
    x = 871,205,246,525.04/808,538.80
  6. Step 6: Final answer
    x = 1,077,505.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.